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  Zinc isotopes from archaeological bones provide reliable trophic level information for marine mammals

McCormack, J., Szpak, P., Bourgon, N., Richards, M., Hyland, C., Méjean, P., et al. (2021). Zinc isotopes from archaeological bones provide reliable trophic level information for marine mammals. Communications Biology, 4(1): 683. doi:10.1038/s42003-021-02212-z.

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McCormack_Zinc_CommBiol_2021.pdf (Verlagsversion), 965KB
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McCormack_Zinc_CommBiol_2021.pdf
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2021
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This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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 Urheber:
McCormack, Jeremy1, Autor           
Szpak, Paul, Autor
Bourgon, Nicolas1, 2, Autor                 
Richards, Michael, Autor
Hyland, Corrie, Autor
Méjean, Pauline, Autor
Hublin, Jean-Jacques1, Autor                 
Jaouen, Klervia1, Autor                 
Affiliations:
1Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Max Planck Society, ou_1497673              
2The Leipzig School of Human Origins (IMPRS), Max Planck Institute for Evolutionary Anthropology, Max Planck Society, ou_1497688              

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 Zusammenfassung: In marine ecology, dietary interpretations of faunal assemblages often rely on nitrogen isotopes as the main or only applicable trophic level tracer. We investigate the geographic variability and trophic level isotopic discrimination factors of bone zinc 66Zn/64Zn ratios (δ66Zn value) and compared it to collagen nitrogen and carbon stable isotope (δ15N and δ13C) values. Focusing on ringed seals (Pusa hispida) and polar bears (Ursus maritimus) from multiple Arctic archaeological sites, we investigate trophic interactions between predator and prey over a broad geographic area. All proxies show variability among sites, influenced by the regional food web baselines. However, δ66Zn shows a significantly higher homogeneity among different sites. We observe a clear trophic spacing for δ15N and δ66Zn values in all locations, yet δ66Zn analysis allows a more direct dietary comparability between spatially and temporally distinct locations than what is possible by δ15N and δ13C analysis alone. When combining all three proxies, a more detailed and refined dietary analysis is possible.

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Sprache(n): eng - English
 Datum: 2021-06-03
 Publikationsstatus: Online veröffentlicht
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 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1038/s42003-021-02212-z
 Art des Abschluß: -

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Titel: Communications Biology
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 4 (1) Artikelnummer: 683 Start- / Endseite: - Identifikator: ISBN: 2399-3642